September weather forecast
Ephraim, WI

Weather in September

The first month of the autumn, September, is still a comfortable month in Ephraim, Wisconsin, with an average temperature ranging between min 57.6°F (14.2°C) and max 64.4°F (18°C).

Temperature

In Ephraim, the average high-temperature in September is almost the same as in August - an enjoyable 64.4°F (18°C). In Ephraim, the average low-temperature is 57.6°F (14.2°C).

Humidity

In September, the average relative humidity in Ephraim is 79%.

Rainfall

In Ephraim, it is raining for 12.9 days, with typically 2.24" (57mm) of accumulated precipitation. In Ephraim, during the entire year, the rain falls for 141.7 days and collects up to 26.93" (684mm) of precipitation.

Snowfall

In Ephraim, snow does not fall in June through September.

Ocean temperature

In Ephraim, the average seawater temperature in September is 60.8°F (16°C).
Note: For swimming, a surface water temperature of 60.8°F (16°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

Daylight

In September, the average length of the day in Ephraim, Wisconsin, is 12h and 31min.
On the first day of the month, sunrise is at 6:10 am and sunset at 7:26 pm. On the last day of September, in Ephraim, sunrise is at 6:45 am and sunset at 6:31 pm CDT.

Sunshine

The average sunshine in September is 8.8h.

UV index

In September, the average daily maximum UV index in Ephraim, Wisconsin, is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The average daily UV index of 3 in September transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the average humidity in September in Ephraim?

The average relative humidity in September in Ephraim is 79%.

How many days does it rain in September in Ephraim?

In Ephraim, Wisconsin, in September, it is raining for 12.9 days, with typically 2.24" (57mm) of accumulated precipitation.

When it does not snow in Ephraim?

June through September are months without snowfall.

Does it snow in Ephraim in September?

In Ephraim, in September, it doesn't snow. In October, it regularly snows.

How cold is the water in September in Ephraim?

In Ephraim, the average seawater temperature in September is 60.8°F (16°C). For swimming, a surface water temperature of 60.8°F (16°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

How many hours of daylight does Ephraim have in September?

In September, the average day length in Ephraim is 12h and 31min.

When is the sunrise / sunset in September in Ephraim?

In September, on the first day of the month, sunrise is at 6:10 am and sunset at 7:26 pm. On the last day of the month, in Ephraim, Wisconsin, sunrise is at 6:45 am and sunset at 6:31 pm CDT.

How long on average sun shines in September in Ephraim?

In September, the average sunshine duration in Ephraim is 8.8h.

What is the UV index reading in September in Ephraim?

In September, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Ephraim, WI

Average temperature in September - Ephraim, WI
  • Average high temperature in September: 64.4°F

The warmest month (with the highest average high temperature) is August (69.6°F).
The month with the lowest average high temperature is January (25.2°F).

  • Average low temperature in September: 57.6°F

The month with the highest average low temperature is August (63°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).

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Average pressure in September
Ephraim, WI

Average pressure in September - Ephraim, WI
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in September
Ephraim, WI

Average wind speed in September - Ephraim, WI
  • Average wind speed in September: 12mph

The windiest month (with the highest average wind speed) is December (15.5mph).
The calmest months (with the lowest average wind speed) are June and July (9.6mph).

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Average humidity in September
Ephraim, WI

Average humidity in September - Ephraim, WI
  • Average humidity in September: 79%

The months with the highest relative humidity are January and June (84%).
The month with the lowest relative humidity is November (76%).

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Average rainfall in September
Ephraim, WI

Average rainfall in September - Ephraim, WI
  • Average rainfall in September: 2.24"

The wettest month (with the highest rainfall) is October (3.07").
The driest months (with the least rainfall) are January and February (1.38").

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Average rainfall days in September
Ephraim, WI

Average rainfall days in September - Ephraim, WI
  • Average rainfall days in September: 12.9 days

The month with the highest number of rainy days is August (15.6 days).
The month with the least rainy days is February (4.8 days).

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Average snowfall in September
Ephraim, WI

Average snowfall in September - Ephraim, WI
  • Average snowfall in September: 0"

The month with the highest snowfall is February (4.49").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Ephraim, WI

Average snowfall days in September - Ephraim, WI
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in September
Ephraim, WI

Average sea temperature in September - Ephraim, WI
  • Average sea temperature in September: 61°F

The best month for swimming (with the highest average sea temperature) is August (64°F).
The coldest months (with the lowest average sea temperature) are March and April (36°F).

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Average daylight in September /
Average sunshine in September
Ephraim, WI

Average daylight in September / Average sunshine in September - Ephraim, WI
  • Average daylight in September: 12h and 31min

The month with the longest days is June (Average daylight: 15h and 35min).
The month with the shortest days is December (Average daylight: 8h and 49min).

  • Average sunshine in September: 8h and 48min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

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Average sunshine days in September
Ephraim, WI

Average sunshine days in September - Ephraim, WI
  • Average sunshine days in September: 15.1 days

The month with the most sunshine days is September (15.1 days).
The month with the least sunshine days is January (8.3 days).

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Average UV index in September
Ephraim, WI

Average UV index in September - Ephraim, WI
  • Average UV index in September: 3

The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, March and December (UV index 1).

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Average cloud cover in September
Ephraim, WI

Average cloud cover in September - Ephraim, WI
  • Average cloud cover in September: 31

The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 28).

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Average visibility in September
Ephraim, WI

Average visibility in September - Ephraim, WI
  • Average visibility in September: 6mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).

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